A Hybrid Method for Modeling and Solving Supply Chain Optimization Problems with Soft and Logical Constraints
Table 3
(a) Decision variables used in the MILP and MILP_T models. (b) Constraints used in the MILP and MILP_T models.
(a)
MILP
MILP_T
Description of the decision variables after the multidimensional transformation
()
()
Decision variable , unlike the initial decision variables , , is generated only for technologically possible indices combinations; it defines the allocation size of product to the route of deliveries
Unnecessary
After transformation replaced by the appropriate factor for the route, generated by the CLP
Without change, the same sense
Unnecessary
After transformation replaced by the appropriate factor for the route, generated by the CLP
Without change, the same sense
Without change, the same sense
(b)
MILP
MILP_T
Description of the constraints after the multidimensional transformation